Book excerpt: The most important aspect of our existence is that every living thing is subject to two forms of evolutionary trends. One is physical, which deals with the investigation of nature by means of science and technology. The other is spiritual, which requires an investigation of nature through perceptive power, commonly achieved through meditative practices. In Spiritual Wisdom, author Ramesh Malhotra explores the evolution of the attainment of spiritual knowledge and inner tranquility and peace. Through practical examples of how to apply these spiritual principles to everyday life, he provides insight into the four tenets of eternal wisdom: mythological wisdom, inspirational wisdom, transcendental wisdom, and absolute truth. He provides an overview of the history of spiritual wisdom, the elements of lower and higher knowledge, and the process of self-revitalization. Providing an in-depth investigation and discussion of the spiritual knowledge and guidance found within the Bhagavad Gita, Malhotra encourages further exploration of spiritual wisdom and enlightenment in order to bring peace, tranquility, and happiness to every life journey.